Advanced measurements include Capacitance, Frequency, and Duty Cycle Relative function for establishing a base line references Type K thermometer built-in for surface or air temperature measurements Input fuse protection and mis-connection warnings > Each Unit Includes CAT III test leads Multi-position tilt stand Hanging strap Holster with built-in test lead storage Bead wire temperature probe (-4 to 482°F/-20 to 250°C) 9V battery